4039488491 has 4 divisors (see below), whose sum is σ = 4099779432. Its totient is φ = 3979197552.

The previous prime is 4039488457. The next prime is 4039488493. The reversal of 4039488491 is 1948849304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4039488491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4039488493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30145370 + ... + 30145503.

It is an arithmetic number, because the mean of its divisors is an integer number (1024944858).

Almost surely, 2^4039488491 is an apocalyptic number.

4039488491 is a deficient number, since it is larger than the sum of its proper divisors (60290941).

4039488491 is an equidigital number, since it uses as much as digits as its factorization.

4039488491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60290940.

The product of its (nonzero) digits is 995328, while the sum is 50.

The square root of 4039488491 is about 63556.9704359797. The cubic root of 4039488491 is about 1592.6076287289.

The spelling of 4039488491 in words is "four billion, thirty-nine million, four hundred eighty-eight thousand, four hundred ninety-one".